Properties of the Number -11782

Eleven Thousand Seven Hundred Eighty-Two

Basics

Value: -11783 → -11782 → -11781

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 43 × 137

Divisors: 1, 2, 43, 86, 137, 274, 5891, 11782

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10111000000110

Octal: -27006

Duodecimal: -699A

Hexadecimal: -2e06

Square: 138815524

Square Root: 108.54492157627642

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

a(n) = ∑_k=0..n binomial(n, floor(k/2))*(-2)^n-k. A127361

Numbers whose multiset multisystem (A302242) is crossing. A324170

Number of representations of n as a sum of products of distinct pairs of positive integers, considered to be equivalent when terms or factors are reordered. A211856

Number of integer partitions of n whose run-lengths are neither weakly increasing nor weakly decreasing. A332641

Centered 21-gonal numbers. A69178

Numbers that are the sum of five third powers in exactly ten ways. A345188

G.f. satisfies: A(x) = 1 + ∑_n>=1 2·xⁿ * A(x)^n². A176719

Triangle read by rows: T(n,k) is the number of embeddings on the sphere of connected simple planar graphs with n nodes and k faces up to orientation preserving isomorphisms, n >= 1, k=1..max(1,2·n-4). A384964

a(n) = least m such that if r and s in {1/1, 1/3, 1/5, ..., 1/(2n-1)} satisfy r < s, then r < k/m < (k+3)/m < s for some integer k. A24844

An inverse Chebyshev transform of (1-x)/(1-2x). A100098